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Diffstat (limited to 'net/atm/ioctl.c')
-rw-r--r--net/atm/ioctl.c195
1 files changed, 97 insertions, 98 deletions
diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index b75afba1f72b..62dc8bfe6fe7 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -37,6 +37,7 @@ void register_atm_ioctl(struct atm_ioctl *ioctl)
list_add_tail(&ioctl->list, &ioctl_list);
mutex_unlock(&ioctl_mutex);
}
+EXPORT_SYMBOL(register_atm_ioctl);
void deregister_atm_ioctl(struct atm_ioctl *ioctl)
{
@@ -44,129 +45,128 @@ void deregister_atm_ioctl(struct atm_ioctl *ioctl)
list_del(&ioctl->list);
mutex_unlock(&ioctl_mutex);
}
-
-EXPORT_SYMBOL(register_atm_ioctl);
EXPORT_SYMBOL(deregister_atm_ioctl);
-static int do_vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg, int compat)
+static int do_vcc_ioctl(struct socket *sock, unsigned int cmd,
+ unsigned long arg, int compat)
{
struct sock *sk = sock->sk;
struct atm_vcc *vcc;
int error;
- struct list_head * pos;
+ struct list_head *pos;
void __user *argp = (void __user *)arg;
vcc = ATM_SD(sock);
switch (cmd) {
- case SIOCOUTQ:
- if (sock->state != SS_CONNECTED ||
- !test_bit(ATM_VF_READY, &vcc->flags)) {
- error = -EINVAL;
- goto done;
- }
- error = put_user(sk->sk_sndbuf - sk_wmem_alloc_get(sk),
- (int __user *) argp) ? -EFAULT : 0;
+ case SIOCOUTQ:
+ if (sock->state != SS_CONNECTED ||
+ !test_bit(ATM_VF_READY, &vcc->flags)) {
+ error = -EINVAL;
+ goto done;
+ }
+ error = put_user(sk->sk_sndbuf - sk_wmem_alloc_get(sk),
+ (int __user *)argp) ? -EFAULT : 0;
+ goto done;
+ case SIOCINQ:
+ {
+ struct sk_buff *skb;
+
+ if (sock->state != SS_CONNECTED) {
+ error = -EINVAL;
goto done;
- case SIOCINQ:
- {
- struct sk_buff *skb;
-
- if (sock->state != SS_CONNECTED) {
- error = -EINVAL;
- goto done;
- }
- skb = skb_peek(&sk->sk_receive_queue);
- error = put_user(skb ? skb->len : 0,
- (int __user *)argp) ? -EFAULT : 0;
- goto done;
- }
- case SIOCGSTAMP: /* borrowed from IP */
+ }
+ skb = skb_peek(&sk->sk_receive_queue);
+ error = put_user(skb ? skb->len : 0,
+ (int __user *)argp) ? -EFAULT : 0;
+ goto done;
+ }
+ case SIOCGSTAMP: /* borrowed from IP */
#ifdef CONFIG_COMPAT
- if (compat)
- error = compat_sock_get_timestamp(sk, argp);
- else
+ if (compat)
+ error = compat_sock_get_timestamp(sk, argp);
+ else
#endif
- error = sock_get_timestamp(sk, argp);
- goto done;
- case SIOCGSTAMPNS: /* borrowed from IP */
+ error = sock_get_timestamp(sk, argp);
+ goto done;
+ case SIOCGSTAMPNS: /* borrowed from IP */
#ifdef CONFIG_COMPAT
- if (compat)
- error = compat_sock_get_timestampns(sk, argp);
- else
+ if (compat)
+ error = compat_sock_get_timestampns(sk, argp);
+ else
#endif
- error = sock_get_timestampns(sk, argp);
+ error = sock_get_timestampns(sk, argp);
+ goto done;
+ case ATM_SETSC:
+ if (net_ratelimit())
+ pr_warning("ATM_SETSC is obsolete; used by %s:%d\n",
+ current->comm, task_pid_nr(current));
+ error = 0;
+ goto done;
+ case ATMSIGD_CTRL:
+ if (!capable(CAP_NET_ADMIN)) {
+ error = -EPERM;
goto done;
- case ATM_SETSC:
- if (net_ratelimit())
- pr_warning("ATM_SETSC is obsolete; used by %s:%d\n",
- current->comm, task_pid_nr(current));
- error = 0;
+ }
+ /*
+ * The user/kernel protocol for exchanging signalling
+ * info uses kernel pointers as opaque references,
+ * so the holder of the file descriptor can scribble
+ * on the kernel... so we should make sure that we
+ * have the same privileges that /proc/kcore needs
+ */
+ if (!capable(CAP_SYS_RAWIO)) {
+ error = -EPERM;
goto done;
- case ATMSIGD_CTRL:
- if (!capable(CAP_NET_ADMIN)) {
- error = -EPERM;
- goto done;
- }
- /*
- * The user/kernel protocol for exchanging signalling
- * info uses kernel pointers as opaque references,
- * so the holder of the file descriptor can scribble
- * on the kernel... so we should make sure that we
- * have the same privileges that /proc/kcore needs
- */
- if (!capable(CAP_SYS_RAWIO)) {
- error = -EPERM;
- goto done;
- }
+ }
#ifdef CONFIG_COMPAT
- /* WTF? I don't even want to _think_ about making this
- work for 32-bit userspace. TBH I don't really want
- to think about it at all. dwmw2. */
- if (compat) {
- if (net_ratelimit())
- pr_warning("32-bit task cannot be atmsigd\n");
- error = -EINVAL;
- goto done;
- }
+ /* WTF? I don't even want to _think_ about making this
+ work for 32-bit userspace. TBH I don't really want
+ to think about it at all. dwmw2. */
+ if (compat) {
+ if (net_ratelimit())
+ pr_warning("32-bit task cannot be atmsigd\n");
+ error = -EINVAL;
+ goto done;
+ }
#endif
- error = sigd_attach(vcc);
- if (!error)
- sock->state = SS_CONNECTED;
+ error = sigd_attach(vcc);
+ if (!error)
+ sock->state = SS_CONNECTED;
+ goto done;
+ case ATM_SETBACKEND:
+ case ATM_NEWBACKENDIF:
+ {
+ atm_backend_t backend;
+ error = get_user(backend, (atm_backend_t __user *)argp);
+ if (error)
goto done;
- case ATM_SETBACKEND:
- case ATM_NEWBACKENDIF:
- {
- atm_backend_t backend;
- error = get_user(backend, (atm_backend_t __user *) argp);
- if (error)
- goto done;
- switch (backend) {
- case ATM_BACKEND_PPP:
- request_module("pppoatm");
- break;
- case ATM_BACKEND_BR2684:
- request_module("br2684");
- break;
- }
- }
- break;
- case ATMMPC_CTRL:
- case ATMMPC_DATA:
- request_module("mpoa");
- break;
- case ATMARPD_CTRL:
- request_module("clip");
+ switch (backend) {
+ case ATM_BACKEND_PPP:
+ request_module("pppoatm");
break;
- case ATMLEC_CTRL:
- request_module("lec");
+ case ATM_BACKEND_BR2684:
+ request_module("br2684");
break;
+ }
+ break;
+ }
+ case ATMMPC_CTRL:
+ case ATMMPC_DATA:
+ request_module("mpoa");
+ break;
+ case ATMARPD_CTRL:
+ request_module("clip");
+ break;
+ case ATMLEC_CTRL:
+ request_module("lec");
+ break;
}
error = -ENOIOCTLCMD;
mutex_lock(&ioctl_mutex);
list_for_each(pos, &ioctl_list) {
- struct atm_ioctl * ic = list_entry(pos, struct atm_ioctl, list);
+ struct atm_ioctl *ic = list_entry(pos, struct atm_ioctl, list);
if (try_module_get(ic->owner)) {
error = ic->ioctl(sock, cmd, arg);
module_put(ic->owner);
@@ -185,7 +185,6 @@ done:
return error;
}
-
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
return do_vcc_ioctl(sock, cmd, arg, 0);
@@ -288,8 +287,8 @@ static int do_atmif_sioc(struct socket *sock, unsigned int cmd,
sioc = compat_alloc_user_space(sizeof(*sioc));
sioc32 = compat_ptr(arg);
- if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int))
- || get_user(data, &sioc32->arg))
+ if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int)) ||
+ get_user(data, &sioc32->arg))
return -EFAULT;
datap = compat_ptr(data);
if (put_user(datap, &sioc->arg))
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 11:53:16 +0000